本文整理汇总了Python中csvkit.utilities.csvsql.CSVSQL类的典型用法代码示例。如果您正苦于以下问题：Python CSVSQL类的具体用法？Python CSVSQL怎么用？Python CSVSQL使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了CSVSQL类的10个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: csvsql
def csvsql(self, csv_file):
"""
Load test data into the DB and return it as a string for comparison.
"""
args = ["--db", "sqlite:///" + self.db_file, "--table", "foo", "--insert", csv_file]
utility = CSVSQL(args)
utility.main()
return open(csv_file, "r").read().strip()示例2: test_empty_with_query
def test_empty_with_query(self):
input_file = six.StringIO()
with stdin_as_string(input_file):
output_file = six.StringIO()
utility = CSVSQL(['--query', 'select 1'], output_file)
utility.run()
output_file.close()
input_file.close()示例3: getHiveSQL
def getHiveSQL(args):
#args = ['--table', 'customer', '/home/ranjan/reb_repository/customer.csv']
output_file = six.StringIO()
utility = CSVSQL(args, output_file)
utility.main()
sql = output_file.getvalue()
dropsql = "DROP TABLE IF EXISTS %s" % (args[1])
createsql = sql[:-2] + " row format delimited fields terminated by ','"
loadsql = "LOAD DATA LOCAL INPATH '/repository/%s.csv' OVERWRITE INTO TABLE %s" % (args[1],args[1])
#print dropsql
#print createsql
#print loadsql
extn_fields = createsql[ createsql.index("(")+1: createsql.index(") row") ]
#print extn_fields
hdp_extn_sql = """
drop server if exists fdw_hadoop_srv cascade;
create server fdw_hadoop_srv foreign data wrapper multicorn
options(
wrapper 'reb_main.HadoopFDW'
);
drop foreign table if exists fdw_hdp_%s cascade;
create foreign table fdw_hdp_%s (
%s
)server fdw_hadoop_srv options(
createsql '%s',
loadsql '%s',
dropsql '%s',
selectsql '%s',
docker_start 'docker run -d -v /home/ranjan/reb_repository:/repository -p 10000:10000 --name rebdoop rebdoop',
docker_stop 'docker stop rebdoop',
docker_remove 'docker rm rebdoop'
);
""" % (
args[1],
args[1],
extn_fields,
createsql.replace("'","''"),
loadsql.replace("'","''"),
dropsql.replace("'","''"),
"select * from %s" % args[1]
)
print hdp_extn_sql
return [loadsql,createsql,dropsql]示例4: test_no_header_row
def test_no_header_row(self):
args = ['--table', 'foo', '--no-header-row', 'examples/no_header_row.csv']
output_file = six.StringIO()
utility = CSVSQL(args, output_file)
utility.main()
sql = output_file.getvalue()
self.assertTrue('CREATE TABLE foo' in sql)
self.assertTrue('column1 INTEGER NOT NULL' in sql)
self.assertTrue('column2 INTEGER NOT NULL' in sql)
self.assertTrue('column3 INTEGER NOT NULL' in sql)示例5: test_stdin_and_filename
def test_stdin_and_filename(self):
args = ['examples/dummy.csv']
output_file = six.StringIO()
input_file = six.StringIO("a,b,c\n1,2,3\n")
with stdin_as_string(input_file):
utility = CSVSQL(args, output_file)
utility.main()
sql = output_file.getvalue()
self.assertTrue('CREATE TABLE stdin' in sql)
self.assertTrue('CREATE TABLE dummy' in sql)示例6: test_stdin
def test_stdin(self):
args = ['--table', 'foo']
output_file = six.StringIO()
input_file = six.StringIO('a,b,c\n1,2,3\n')
with stdin_as_string(input_file):
utility = CSVSQL(args, output_file)
utility.main()
sql = output_file.getvalue()
self.assertTrue('CREATE TABLE foo' in sql)
self.assertTrue('a INTEGER NOT NULL' in sql)
self.assertTrue('b INTEGER NOT NULL' in sql)
self.assertTrue('c INTEGER NOT NULL' in sql)示例7: test_no_inference
def test_no_inference(self):
args = ['--table', 'foo', '--no-inference', 'examples/testfixed_converted.csv']
output_file = six.StringIO()
utility = CSVSQL(args, output_file)
utility.main()
sql = output_file.getvalue()
self.assertTrue('CREATE TABLE foo' in sql)
self.assertTrue('text VARCHAR(17) NOT NULL' in sql)
self.assertTrue('date VARCHAR(10) NOT NULL' in sql)
self.assertTrue('integer VARCHAR(3) NOT NULL' in sql)
self.assertTrue('boolean VARCHAR(5) NOT NULL' in sql)
self.assertTrue('float VARCHAR(11) NOT NULL' in sql)
self.assertTrue('time VARCHAR(8) NOT NULL' in sql)
self.assertTrue('datetime VARCHAR(19) NOT NULL' in sql)示例8: test_create_table
def test_create_table(self):
args = ['--table', 'foo', 'examples/testfixed_converted.csv']
output_file = six.StringIO()
utility = CSVSQL(args, output_file)
utility.main()
sql = output_file.getvalue()
self.assertTrue('CREATE TABLE foo' in sql)
self.assertTrue('text VARCHAR(17) NOT NULL' in sql)
self.assertTrue('date DATE' in sql)
self.assertTrue('integer INTEGER' in sql)
self.assertTrue('boolean BOOLEAN' in sql)
self.assertTrue('float FLOAT' in sql)
self.assertTrue('time TIME' in sql)
self.assertTrue('datetime DATETIME' in sql)示例9: test_query
def test_query(self):
args = ['--query', 'select m.usda_id, avg(i.sepal_length) as mean_sepal_length from iris as i join irismeta as m on (i.species = m.species) group by m.species', 'examples/iris.csv', 'examples/irismeta.csv']
output_file = StringIO()
input_file = StringIO("a,b,c\n1,2,3\n")
with stdin_as_string(input_file):
utility = CSVSQL(args, output_file)
utility.main()
sql = output_file.getvalue()
self.assertTrue('usda_id,mean_sepal_length' in sql)
self.assertTrue('IRSE,5.006' in sql)
self.assertTrue('IRVE2,5.936' in sql)
self.assertTrue('IRVI,6.588' in sql)示例10: test_empty_with_query
def test_empty_with_query(self):
with stdin_as_string(six.StringIO()):
utility = CSVSQL(['--query', 'select 1'], six.StringIO())
utility.main()